There are several examples of evidence that support endosymbiosis theory. Mitochondria and chloroplasts contain their own small supply of DNA, which may be remnants of the genome the organelles had when they were independent aerobic bacteria.
on October 28, 2014 at 10:10 AM, updated October 28, 2014 at 10:21 AM. Print Email. Comments. JACKSON -- A 5-foot, 10-inch baby giraffe named Mika was born at Six Flags Great Adventure earlier this month, becoming the ninth giraffe in the park's Safari Off Road Adventure, park officials said Tuesday.
How giraffes are born. The average gestation period for giraffes is 15 months. Baby giraffes, known as calves, typically weigh 100 to 150 lbs. (45 to 68 kilograms) and are about 6 feet (1.8 meters) tall when they're born, according to Animal Planet. Giraffes give birth standing up, and the baby falls â head and hooves first â from a height of 6 feet, Holloway said. This dramatic entrance breaks the amniotic sac, a fluid-filled pouch that protects the fetus in the womb, severs the umbilical cord, and forces the calf to start breathing on its own.